Red/dark and Shiny Patches of Peeled Skin from Retin-a Micro 0.1%?

I'm using retin-a micro all over my body because I have post inflammatory hyperpigmentation. I'm just looking to rejuvenate my skin. My body is peeling, particularly my underarms and the crook of my arms. My chest area was red but now it's just dark. Now the peeled skin is red/dark- some shiny, some dull. It's still peeling a lot. I've been using retin-a micro since the end of October. Is this normal? When will the peeling stop and will my real skin color come through?